Table 2. Proportion of Eyes with an Observable Schlemm’s Canal.
| Eyes with observable SC | ||||
|---|---|---|---|---|
| Normal | POAG | χ | p-value | |
| Right eyes, n (%) | 129/160 (80.6) | 88/160 (55.0) | 24.067 | <0.001 |
| Superior, n (%) | 35/40 (87.5) | 23/40 (57.5) | 9.028 | 0.003 |
| Nasal, n (%) | 30/40 (75.0) | 18/40 (45.0) | 7.500 | 0.006 |
| Inferior, n (%) | 31/40 (77.5) | 23/40 (57.5) | 3.647 | 0.056 |
| Temporal, n (%) | 33/40 (82.5) | 24/40 (60.0) | 4.943 | 0.026 |
| p-value a | 0.501 | 0.528 | ||
| Left eyes, n (%) | 128/160 (80.0) | 82/160 (51.3) | 29.313 | <0.001 |
| Superior, n (%) | 32/40 (80.0) | 21/40 (52.5) | 6.765 | 0.009 |
| Nasal, n (%) | 31/40 (77.5) | 19/40 (47.5) | 7.680 | 0.006 |
| Inferior, n (%) | 32/40 (80.0) | 22/40 (55.0) | 5.698 | 0.017 |
| Temporal, n (%) | 33/40 (82.5) | 20/40 (50.0) | 9.448 | 0.002 |
| p-value a | 0.958 | 0.919 | ||
| Total, n (%) | 257/320 (80.3) | 170/320 (53.1) | 53.261 | <0.001 |
Statistical comparisons made using chi-square tests. SC = Schlemm’s canal, POAG = primary open angle glaucoma.
a difference among superior, nasal, inferior and temporal sections.